Ethanolic extraction with 20% dry extract. - No contaminants - ask for our analysis sheet. Using 100% brazilian green propolis from alecrin-do-campo (Baccharis dracunculifolia), Bioessens Propolis Extracts are well know for its high quality and high levels of Artepllin-C. Comes with a graduated dropper. Minimum concentrations: - Dry extract................20% - BRIX..........................40% - Flavonoids...............14 mg/mL - Artepillin-C...............7,0 mg/mL - ρ-coumaric acid......1,0 mg/mL GMP and HACCP quality controled processes. 1 Box containing 24 flasks of 30mL. more info at - www.bioessens.com